Quieter for locomotive exhaust-nozzles



(No Model.)

B. THAYEB.

QUIETER FOR LOGOMOTIVB EXHAUST NOZZLES.

Patented Nov. 16, 1886.

INV E NTOR WITNESSES I 5W ATTORNEYS.

N. PETERS. FhnloLIlhcgruphcr. Washmgioll. u. c.

,1, reduce the. noise of the exhaust during the UNITED STATES PATENTOFFICE.

RUSSELL THAYER, OF PHILADELPHIA, PENNSYLVANIA.

Q UIETER FOR LOCOMOTIVE EXHAUST-NOZZLES.

SPECIFICATION forming part of Letters Patent No. 352,720, dated November16, 1886.

v Application filed September .22, 1886. Serial No." 214,254. (Nomodel.)

To 6255 whom it may concern:

Be it known that I, RUssnLL THAYER, of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented a new and ImprovedAdjustable Quieter for L0- comotive Exhaust-Nozzles, of which thefollowing is a specification, reference being had tothe accompanyingdrawings, forming a part thereof, in which-. I

Figure 1 is a front sectional elevation of the smoke-box of alocomotive, showing my improvedquieter in position for use; and Fig. 2is a side sectional elevation of the smoke-box of a locomotive, showingthe quieter'applied to the exhaust-nozzle.

Similar lettersof reference indicate corresponding parts in both views.

The object of my invention is to provide a noise-quieter for theexhaust-nozzle of a locomotive, which may be readily applied to thenozzle when the locomotive is started and which may be easily removedfrom the nozzle after the locomotive is under way.

My invention consists in a noise-quieting cap attached to a rock-shaftjournaled in and extended beyond the side of the smoke-box and providedwith an arm connected with a rod extending to the cab of a locomotive,so that the engineer or' fireman may readily, turn the quieter down overthe exhaust-nozzle or swing it back out of the way, as circumstances mayrequ1re.

It is well known that the principal noise made by a locomotive is causedby the escape of the exhaust-steam while the engine is being started andthe steam is allowed to follow the piston throughout nearly its entirestroke. Devices for quieting the noise of the exhaust have beenpermanently applied to the exhaust-nozzles of locomotives; but whilethey starting of the engine, they also diminish the power of the engineafter the engine is adjusted to cut off the steam earlier in the stroke.My invention obviates this difficulty by providing a quieting-nozzlewhich may be held in position for use as long as is hecessary, but whichmay be readily removed out of the way after the engine is started andthe exhaust becomes practically noiseless.

The exhaust-nozzle A is arranged in the smoke-box B, in the usual way.

To the side of the exhaust-nozzle is attached an ear, 0, in which isjournaled one end of a rockvshaft, D, the other end of which extendsthrough the side of the smoke-box and is provided with an arm, E.

To the inner end of the shaft D is secured a noise-quieting cap, F,whichis adapted to shut down over the upper end'of the nozzle A, as shown inFig.1, or thrown back out of the Way of the exhaust, as shown in dottedlines in Fig. 2.

To the arm E, on the outer end of the shaft D, is pivoted a rod, G,which extends to the cab of the locomotive,within easy reach of theengineer or fireman. the noise-quieter F is carried down. over the endof the exhaust-nozzle A, and by pulling the rod the noise-quieter isswung back out of the way, as indicated in dotted lines in- Fig.2. I

The noise-quieting cap F may be made in any approved way; but I preferthe form shown in the drawings, in whichthe cap con- By pushing this rodsists of a metallic perforated cup containing I wire-cloth or a seriesof interlaced wire coils, to intercept or break up the exhaust issuingfrom the nozzle A and also absorb the vibrations, and consequentlyobviate the noise.

If desirable, the noise-quieter may be arranged to slide instead ofswing, as shown in the drawings.

Having thus fully described my invention, I

claim as newan'd desire to secure by Letters Patent 1. The combination,withthe exhaustnozzle substantially as described.

' 2. The combination, with the exhaust-nozzle A, of the shaflnD, thenoise-quieter F, secured to the shaft and arranged to swing over A, ofthe movable noisequieter F, constructed the exhaust-nozzle A, the arm E,carried by the shaft, and the rod G, .extending to the cab of thelocomotive, substantially .as described.

3. The combination, with the exhaust-nozzle A, of the perforatedswinging noise-quieting cap F, provided on its interiorwith wiregauzetointereept theexhaust-steam and prevent the vibrations thereof,substantially as described.

' RUSSELL THAYER. Witnesses:

F. M. DOUGHERTY,

J. M. JORDAN.

